refactor(server): auth (#5895)

Remove `next-auth` and implement our own Authorization/Authentication system from scratch.

## Server

- [x] tokens
  - [x] function
  - [x] encryption

- [x] AuthController
  - [x] /api/auth/sign-in
  - [x] /api/auth/sign-out
  - [x] /api/auth/session
  - [x] /api/auth/session (WE SUPPORT MULTI-ACCOUNT!)

- [x] OAuthPlugin
  - [x] OAuthController
  - [x] /oauth/login
  - [x] /oauth/callback
  - [x] Providers
    - [x] Google
    - [x] GitHub

## Client

- [x] useSession
- [x] cloudSignIn
- [x] cloudSignOut

## NOTE:

Tests will be adding in the future

packages/backend/server/src/plugins/oauth/index.ts

@@ -0,0 +1,25 @@
+import { AuthModule } from '../../core/auth';
+import { ServerFeature } from '../../core/config';
+import { UserModule } from '../../core/user';
+import { Plugin } from '../registry';
+import { OAuthController } from './controller';
+import { OAuthProviders } from './providers';
+import { OAuthProviderFactory } from './register';
+import { OAuthResolver } from './resolver';
+import { OAuthService } from './service';
+
+@Plugin({
+  name: 'oauth',
+  imports: [AuthModule, UserModule],
+  providers: [
+    OAuthProviderFactory,
+    OAuthService,
+    OAuthResolver,
+    ...OAuthProviders,
+  ],
+  controllers: [OAuthController],
+  contributesTo: ServerFeature.OAuth,
+  if: config => !!config.plugins.oauth,
+})
+export class OAuthModule {}
+export type { OAuthConfig } from './types';